
const a: Array<number> = [1,2,3]

const date = new Date()

date.getDate()

const reg = /abc/
reg.test('abc')

Math.pow(2,2)

let body = document.body
body.click()


let allLis = document.querySelectorAll('li')


document.addEventListener('click',(e)=>{

})

interface IPerson{
    name: string,
    age:number
}

let viking:IPerson = {name: 'wangyang',age:18}

type IPartial = Partial<IPerson>

